The people of the United States, U.S. Americans, or simply Americans or American people, are citizens of the United States. The United States is a multi-ethnic nation, home to people of different ethnic and national backgrounds. As a result, some Americans don't take their nationality as an ethnicity, but identify themselves with both their nationality and their ancestral origins. Aside from the indigenous American Indian population, nearly all Americans or their ancestors immigrated within the past five centuries.[13]

In addition to the United States, Americans and people of American descent can be found internationally such as in Mexico, Canada, Australia, and throughout Europe, South America, and the Caribbean. As many as 4 million Americans are estimated to be living abroad.[3]